TANDBERG D12155-10 user manual Advanced call quality, Qcif

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Advanced use

TANDBERG Videoconferencing System

Advanced call quality

NOTE

THE ‘AUTO’ SETTINGS ARE RECOMMENDED CHOICES FOR MOST CASES. THE OTHER AUDIO, VIDEO AND RESOLUTION SELECTIONS MADE IN THIS MENU WILL OVERRIDE THE SELECTIONS MADE IN THE ‘CALL QUALITY’ MENU AND ARE NOT RECOMMENDED TO BE CHANGED FOR NORMAL USE.

Audio
Auto	The setting of ‘Audio: Auto/High/Normal’ in ‘Call Quality’ will be used.
G.722.1	Compressed high quality audio (7 kHz).
G.722	High quality audio (7 kHz).
G.728	Compressed normal quality audio (telephone quality, 3.1 kHz).
G.711	Normal quality audio (telephone quality, 3.1 kHz).
Off	No audio is transmitted.

Video
Auto	Optimized video quality depending on available bandwidth.
H.264**	Bandwidth efficient video compression and decompression.
H.263	Normal video compression and decompression.
H.261	Legacy video compression and decompression.
Off	No video is transmitted.

TIP

RESOLUTION, AUTO FUNCTIONALITY

(IF SUPPORTED BY FAR END):

WHEN ‘VIDEO: MOTION’ :

LOW BANDWIDTHS: CIF, SIF

HIGH BANDWIDTHS: ICIF,ISIF

WHEN ‘VIDEO: SHARPNESS’ :

4CIF, 4SIF, VGA, SVGA, XGA**

Resolution
Auto	The setting of ‘Video: Auto/Motion/Sharpness’ in ‘Call Quality’ will be used, see tip above.
4CIF *	Digital Clarity (704 x 576 pixels), only for H263.
CIF	High resolution video (352 x 288 pixels).
QCIF	Low resolution video (176 x 144 pixels).
H.331
Off	Standard two-way communication with quality negotiation between both sides.
On	Used when broadcasting a video conference from one site to many others, e.g. via satellite,
	where there is no possibility to negotiate quality between the receivers and the originator due to
	one-way communication.

Status Format

Provides call quality feedback on the status line.

Auto	Video off/on, Audio off/normal/high
Advanced	Shows video/audio standards (Example: Video: H261 CIF, Audio: G722).

*- Requires option ‘Presenter’. To check which options are installed, see the ‘System Info’ menu in ‘Diagnostics’. ** - E2 Only

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Contents UserManual Tandberg Videoconferencing System Environmental Issues Trademarks and copyrightOperator Safety Summary Contents Advanced use Peripheral EquipmentAppendices 104 Index 114 Introduction TIPMenu structure LANTandberg 2500 Videoconferencing System At a glance the Tandberg 2500 systemV.E. II Camera MonitorsCodec Remote control CabinetTable microphone Installation PrecautionsUnpacking Page Connecting cables Power cableMonitor cables Microphone cableMonitor configuration 5a. Isdn cables using BRI interface5b. Other networks using the External Network interface LAN cableSystem configuration MenuIsdn configuration LAN configuration Getting started System start-upWelcome menu Basics Making and ending calls Making a callTIP Selecting / setting default quality bandwidth Selecting / setting default network Answer a call End a callCorrecting keying mistakes Directory Press D Irectory to bring up the following menuAdd New Entry Edit EntryDelete Entry Add MultiSite Entry Add SiteAdjusting volume General useView outgoing video selfview Microphone on/offDo Not Disturb / Sleep Mode On Screen SymbolsFocusing camera Controlling the Main CameraSelecting video sources Moving / zooming cameraVoice Activated Camera Positioning Presets Selecting presetsStoring presets Far end camera control Fecc Sending and receiving snapshots Sending a snapshotViewing a snapshot Receiving a snapshotDuo Video Add Duo VideoEnd a Duo Video call MultiSite MCU Establishing MultiSite meetings using Directory MultiSite cascadingAdding an extra site dial out Disconnecting sites from a conference Adding an extra site dialPC Presenter PC SoftPresenterWeb-interface Text Chat / Closed CaptioningOther PC applications StreamingSnapshots Menu Password Advanced useMain menu Call quality Advanced call quality QcifPresentation Mode Duo Video ModePresentations Duo Video QualityDuo Video Number Duo Video / Snapshot SourceAuto-Display Snapshot Snapshot FilterUtilities AutoanswerFar end camera control Dual MonitorAuto-PIP Welcome MenuContinuous Presence MCU status lineWeb Snapshots MCU services Quick Menu Request floor Release floorTerminal Names View site #Chair control Audio Settings Audio InputsPage Level Settings Out1 +13.5dB Out2AUX Out3VCR Previous Menu Audio OutputsEcho Control Page Automatic Gain Control AGC Settings Alert Tones & Volume Restore Audio DefaultsVideo Settings Camera Tracking ModeDocument Camera Focus BrightnessWhitebalance Video NameVGA Settings VNC Settings Terminal Settings Network ConfigurationISDN-BRI Settings Spids This Service has Limited Access on Some Isdn Networks Parallel dial External network settings 35/RS-366 cable LAN Settings Page Settings Page Advanced H.323 Settings RsvpQoS Type IP PrecedenceDiffserv IP Settings Snmp Settings Call Settings Access CodeIncoming MCU calls Incoming telephone callsEncryption Mode Encryption Secure ConferenceMax Call Length Network ProfilesDataport configuration Page Language Software OptionsDiagnostics System infoChannel status TIP Restore defaults Call statusView current settings Test subsystemIP Address Conflict Check Peripheral Equipment InterfacesE2 only Dual Monitor XGA monitorDocument camera Multiple controllable cameras AudioScience microphone TrackerVideo Cassette Recorder VCR VCR PlaybackVCR Recording Telephone Add-On Extra fixed camerasPC applications Additional microphones Appendices TandbergAppendix 2 Connecting the system to the Switched 56 network Using Telesync TS-256 SW56/ISDN adapterLoudspeaker volume Appendix 3 Environmental considerationsIris control and lighting BackgroundGuidelines for setting up videoconferencing rooms How to prepare a typical room for videoconferencingAppendix 4 Using the file system Custom logos · Go to the folder where your logo is located Appendix 6 Security ABC111 112 Appendix 6 Declaration of Conformity Index FeccTandberg Videoconferencing System Index Current settings 93 outgoing video 30 Viewing a still image